75474047457 has 16 divisors (see below), whose sum is σ = 111822545280. Its totient is φ = 50311917936.

The previous prime is 75474047413. The next prime is 75474047461.

It is a happy number.

75474047457 is a `hidden beast` number, since 7 + 54 + 74 + 0 + 474 + 57 = 666.

75474047457 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 75474047457 - 2⁶ = 75474047393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75474047357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242323 + ... + 457895.

It is an arithmetic number, because the mean of its divisors is an integer number (6988909080).

Almost surely, 2^75474047457 is an apocalyptic number.

It is an amenable number.

75474047457 is a deficient number, since it is larger than the sum of its proper divisors (36348497823).

75474047457 is a wasteful number, since it uses less digits than its factorization.

75474047457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228549 (or 228543 counting only the distinct ones).

The product of its (nonzero) digits is 15366400, while the sum is 54.

The spelling of 75474047457 in words is "seventy-five billion, four hundred seventy-four million, forty-seven thousand, four hundred fifty-seven".